mb3790pf Fujitsu Microelectronics, Inc., mb3790pf Datasheet - Page 3

• Manufacturer Part Number: mb3790pf
• Description: Battery Backup Ic
• Manufacturer: Fujitsu Microelectronics, Inc.

BLOCK DIAGRAM
CONTROL
V
GND
SENSE
V
IN
590 k
240 k
+
-
1.24 V
voltage power
supply circuit
Reference
S
R
V
th
R
Q
: 1.5 V
ON
= 0.5
C
3 A
T
500
V
th
: 3 V
V
BAT2
2.65 V
2.37 V
V
BAT1
100
SBD
+
+
-
-
V
V
V
V
OUT
OUT
IN
IN
MB3790
V
RESET
RESET
ALARM1
ALARM2
OUT
3